An Improved Unsupervised Single-Channel Speech Separation Algorithm for Processing Speech Sensor Signals

Table 2

The results of different speech separation methods (SNR, PESQ, STOI).

		Voice
Method	Index
MIX	SNR	1.64	5.45	-0.77	1.83	-0.61	0.08	-2.07
	PESQ	2.27	2.05	2.43	1.58	1.84	1.75	1.73
	STOI	0.87	0.87	0.74	0.76	0.75	0.78	0.60
CNMF	SNR	9.31	7.93	8.46	8.52	5.94	6.38	4.89
	PESQ	2.85	2.21	2.49	1.85	1.99	1.97	2.08
	STOI	0.85	0.85	0.77	0.80	0.78	0.78	0.73
CNMF + ICA	SNR	9.28	10.62	5.42	6.88	7.19	5.71	2.63
	PESQ	2.10	1.84	1.80	1.78	1.80	1.66	1.78
	STOI	0.94	0.93	0.89	0.89	0.85	0.88	0.62
CNMF + JADE	SNR	13.10	9.20	11.19	8.44	7.03	8.32	5.68
	PESQ	3.02	2.40	2.69	2.05	2.20	2.26	2.35
	STOI	0.95	0.90	0.92	0.88	0.85	0.89	0.74